[GreenKeys] TU replacement

[Hugh Pyle]

Continuing down the linux-commandline road with some basic success.
It's pretty wonderful to see ITTY in the terminal.  Next I need to run this
on an actual Teletype!


pi at stdout:~ $ fIcy -p http://internet-tty.net:8000/ITTY | lame --decode
--quiet --mp3input - - | minimodem rtty -i -a -q -R 11025 -f -
P
EMPLOYER, THE ROYAL AIR FORCE, HE WORKED ON FAST
RESCUE BOATS FOR DOWNED AIRPLANES. HE HAD WATCHED AN
AIR CREW DROWN BECAUSE THE BOAT SENT TO RESCUE THEM
(etc)

fIcy: https://www.thregr.org/~wavexx/software/fIcy/ (download, tar xzvf,
then 'make')
minimodem: http://www.whence.com/minimodem/ installed with 'apt-get install
minimodem'
lame: version 3.100 installed with 'apt-get install lame'




On Wed, Aug 21, 2019 at 3:53 PM Hugh Pyle <hpyle at cabezal.com> wrote:

> For linux, there's also minimodem (http://www.whence.com/minimodem/).
> From the man page (http://www.whence.com/minimodem/minimodem.1.html) it
> should handle all the RTTY frequency shifts.  I don't know whether it can
> output raw 5-level bits.
>
> Haven't tried it myself, yet, but this is on my todo list...
>
>
> On Wed, Aug 21, 2019 at 3:34 PM John, W9DDD <w9ddd at tapr.org> wrote:
>
>> Yes I saw that one.  It's a shame that happened.  I guess he never made
>> it public domain once he decided to pack it in.  (Perhaps disgusted
>> enough to not do that?)
>>
>> I did run into https://www.ele.uva.es/~jesus/rtty/index.html which is
>> simple enough to try and modify.  Unfortunately I haven't kept up my C
>> programming skills.  Too bad PHP and HTML doesn't work for DSP.
>>
>> I don't see even a pirate copy on the internet. Wonder if you can run
>> DOS on a Raspberry Pi?  A linux version of something would be my
>> preference.
>>
>>
>> John, W9DDD
>> Ich habe dreimal abgeschnitten uns jetzt zu kurtz. (I cut it off 3 times
>> and it's still too short.)
>>
>> On 8/21/2019 2:09 PM, Jim Haynes wrote:
>> > On Wed, 21 Aug 2019, John, W9DDD wrote:
>> >> I've been reading docs about MMTTY, fldigi etc.  As near as I can tell
>> >> they all are oriented towards squirting characters on the screen. I
>> >> don't see an option to drive an external printer either by bit banging
>> >> a digital I/O port or a USB device like the volpe board.
>> >>
>> >> Is there an existing solution and I missed it or?
>> >>
>> > I don't think so.  I've been begging writers of the software to produce
>> > a Baudot output on a wire when receiving, but so far have had no
>> success.
>> >
>> > The now-ancient K6STI RITTY sofware did do that (at my request) but is
>> no
>> > longer available, more or less driven out by all the free software and
>> > by the author's disgust at pirated copies.  And it was never updated to
>> > run on anything but DOS and anything but a Soundblaster card.  I have an
>> > old DOS machine that can still run it.
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